質(zhì)量標(biāo)準(zhǔn) QUALITY SPECIFICATIONS

外觀 Description

淡黃色結(jié)晶

Pale-yellow crystals

目測(cè)

Visual

含量 Assay

98.0～102.0%

氫氧化鈉滴定法

Titration by NaOH

水分 Water Content, max

≤ 2.0%

干燥失重法

Loss on drying   method

鑒定 Identify

符合結(jié)構(gòu)

Conforms to Structure

核磁共振氫譜

¹H-NMR

運(yùn)輸規(guī)定與存儲(chǔ)條件

TRANSPORT REGULATIONS

and STORAGE CONDITIONS

商品編碼(HS Code)：2933599099；出口退稅率：13%。

無(wú)主要危險(xiǎn)性（普通化工品）。

保持容器密閉，貯存在常溫干燥通風(fēng)處，遠(yuǎn)離堿、氧化劑等不相容物質(zhì)。

性質(zhì)穩(wěn)定，在常溫常壓下，不揮發(fā)、無(wú)分解。

保質(zhì)期：60個(gè)月。

Without main danger (Common goods).

Keep containers tightly closed when not in use.

Stored in   the dry and ventilated place at room temperature, Keep away from alkali,   oxidant and other incompatible substances.

Stable in nature, non-volatile and non   decomposable at normal temperature and pressure.

Shelf Life: 60 Months.

用途

USE

醫(yī)藥中間體和有機(jī)合成中間體，用作藥物甲氨喋呤中間體。

Pharmaceutical   intermediates and organic synthesis intermediates, Used as a drug   methotrexate intermediate.